Review Index:

Iwill KK266Plus KT133A Motherboard Review

Author: Ryan Shrout
Subject: Motherboards
Manufacturer: Iwill

Overclocking, RAID and System Setup

This content was originally featured on and has been converted to PC Perspective's website. Some color changes and flaws may appear.

Overclocking on all Iwill boards is a dream come true for most hardware enthusiasts! Offering every option to be edited in the bios (with the exception of the 100 MHz / 133 MHz jumper), Iwill has made a name for themselves in the overclocking arena. The KK266Plus does not break this tradition. Pushing upwards of a 170 MHz FSB on an underclocked Athlon 1.4 GHz, this easily beats the best I have used before hand. Of course, to get speeds near this, you have to have some kick ass SDRAM, such as Corsair’s. Overall I was able to push the Athlon Thunderbird 1.4 GHz to a great 1.65 GHz with air-cooling. Several other motherboards have reached this speed, but not 170 MHz FSBs!

The RAID features included on the KK266Plus-R are powered by the American Megatrends MG80649 chipset. This chipset offers performance and features on par with the popular Promise counterpart. Also, its important that I tell you that you CAN use the KK266Plus-R IDE3 and IDE4 ports for standard non-ATAPI ATA/100 devices! This means you can add an additional four hard drives with or without a RAID mode. An excellent feature I wish all board manufactures would include on RAID boards.

Here is the system setup and benchmarks used:

Test System Setup


AMD Thunderbird 1.4 GHz (133 MHz Bus)


1 x 256MB Corsair PC150 SDRAM

Hard Drive

20.5GB 7200 RPM Western Digital EIDE

Video Card

Visiontek GeForce 3

Video Drivers

Detonator 12.90

Operating System

Windows 98 SE


Quake III: Arena

3DMark 2001

SiSoft Sandra Memory Bench

SiSoft Sandra CPU Bench

Content Creation Winstone 2001

Business Winstone 2001

4 different SPEC view perf tests



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